/**
 *    Copyright (C) 2025-present MongoDB, Inc.
 *
 *    This program is free software: you can redistribute it and/or modify
 *    it under the terms of the Server Side Public License, version 1,
 *    as published by MongoDB, Inc.
 *
 *    This program is distributed in the hope that it will be useful,
 *    but WITHOUT ANY WARRANTY; without even the implied warranty of
 *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *    Server Side Public License for more details.
 *
 *    You should have received a copy of the Server Side Public License
 *    along with this program. If not, see
 *    <http://www.mongodb.com/licensing/server-side-public-license>.
 *
 *    As a special exception, the copyright holders give permission to link the
 *    code of portions of this program with the OpenSSL library under certain
 *    conditions as described in each individual source file and distribute
 *    linked combinations including the program with the OpenSSL library. You
 *    must comply with the Server Side Public License in all respects for
 *    all of the code used other than as permitted herein. If you modify file(s)
 *    with this exception, you may extend this exception to your version of the
 *    file(s), but you are not obligated to do so. If you do not wish to do so,
 *    delete this exception statement from your version. If you delete this
 *    exception statement from all source files in the program, then also delete
 *    it in the license file.
 */

#include "MongoStringDataStringViewApi.h"

#include <array>
#include <string>

#include <clang/Tooling/Core/Replacement.h>

namespace mongo::tidy {

using namespace clang;
using namespace clang::ast_matchers;

namespace {

struct Replacement {
    std::string oldName;
    std::string newName;
};

const std::string klass = "mongo::StringData";

const std::array replacements{
    Replacement{"rawData", "data"},
    Replacement{"startsWith", "starts_with"},
    Replacement{"endsWith", "ends_with"},
};

}  // namespace

void MongoStringDataStringViewApi::registerMatchers(MatchFinder* finder) {
    for (auto&& r : replacements) {
        finder->addMatcher(
            cxxMemberCallExpr(callee(cxxMethodDecl(ofClass(hasName(klass)), hasName(r.oldName))))
                .bind(r.oldName),
            this);
    }
}

void MongoStringDataStringViewApi::check(const MatchFinder::MatchResult& result) {
    for (auto&& r : replacements) {
        auto call = result.Nodes.getNodeAs<clang::CXXMemberCallExpr>(r.oldName);
        if (!call)
            continue;
        auto memberLoc = call->getExprLoc();
        if (memberLoc.isInvalid())
            continue;
        diag(memberLoc, "replace '" + r.oldName + "' with '" + r.newName + "'")
            << clang::FixItHint::CreateReplacement(clang::CharSourceRange::getTokenRange(memberLoc),
                                                   r.newName);
    }
}

}  // namespace mongo::tidy
